accident
alert
attention
black
cartoon
caution
character
danger
dangerous
down
drop
fail
failure
fall
floor
graphics
hazard
hurt
icon
illustration
incident
injury
janitorial
man
notice
office
people
person
pictogram
puddle
risk
risky
road
safe
safety
silhouette
slide
slip
slippery
stumble
surface
symbol
trauma
tumble
warning
water
wet
woman